Process for dyeing or printing fibre materials containing hydroxyl groups

ABSTRACT

Process for dyeing or printing fiber materials containing hydroxyl groups, characterized in that at least one blue-dyeing dyestuff of the formula    &lt;IMAGE&gt;  (1)  wherein the substituents have the meaning given in the description, is used together with at least one yellow-dyeing and/or at least one red-dyeing and/or at least one navy blue- or black-dyeing dyestuff.

This is a division of application Ser. No. 08/430,626, filed Apr. 28, 1995now U.S. Pat. No. 5,653,773.

The present invention relates to a process for dyeing or printing fibre materials containing hydroxyl groups with dyestuff mixtures in accordance with the dichromaticity principle.

For dyeing or printing textile fibre materials in accordance with the dichromaticity principle, dyestuffs having a colour build-up which is as uniform as possible coupled with a constancy of nuance in various concentrations and a good ability to be combined are required, inter alia, in order to obtain dyed/printed textile fibre materials which largely meet the requirements. Mixtures of a yellow- or orange-dyeing dyestuff together with a blue- and/or red-dyeing dyestuff are known from EP-A-549 529 (=U.S. Pat. No. 5,268,475).

This aim was not always to be achieved with the dyestuffs/dyestuff mixtures used to date, in particular in respect of ability to be combined, rate of absorption, degree of absorption, especially in deep, clear shades, fibre and surface levelness and general fastness properties, such as, for example, wet-fastness properties, and the object of the present invention was therefore to provide improved processes for dyeing or printing fibre materials containing hydroxyl groups, in particular in accordance with the dichromaticity principles.

Mixtures are further known from EP-A-478,503 (=U.S. Pat. No. 5,232,462), EP-A-548,014 (=U.S. Pat. No. 5,324,330) and EP-A-549 530.

The present invention relates to a process for dyeing or printing fibre materials containing hydroxyl groups, which is characterized in that at least one blue-dyeing dyestuff of the formula ##STR2## is used together with at least one yellow-dyeing and/or at least one red-dyeing and/or at least one navy blue- or black-dyeing dyestuff, wherein

R=hydrogen or optionally substituted alkyl, in particular C₁ -C₄ -alkyl,

R'=hydrogen or a substituent,

T₁, and T₂ =hydrogen, chlorine, bromine, optionally substituted C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, phenyl or phenoxy,

W=a bridge member,

A=an optionally substituted alkylene, cycloalkylene, arylene or aralkylene radical and

m and n=0 or 1,

wherein the substituents and indices with the same designation can have different meanings.

If n=1, the sulpho group is in the opposition relative to the substituent --NR--.

Furthermore, the invention refers to dyestuff mixtures comprising at least one blue-dyeing dyestuff of the formula (I) and at least one yellow-dyeing and/or at least one red-dyeing and/or at least one navy blue- or black-dying dyestuff as defined supra.

The bridge members W can be the bridge members customary in dyestuffs, which are known, for example, from EP-A-361 186 (=U.S. Pat. No. 4 990 615), DE-A-4 005 551 (=U.S. Pat. No. 5 122 605), DE-A-3 936 183, DE-A-3 939 700 and EP-A-485 329 (=U.S. Pat. No. 5 268 475).

Particularly preferred such bridge members are: ##STR3## wherein X=H or a substituent customary in dyestuffs bridged by triazine ##STR4##

Examples of R are: CH₃, C₂ H₅, n-C₃ H₇, i-C₃ H₇, n-C₄ H₉ and n-C₆ H₁₃, which can be substituted, for example, by OH, OCH₃, OC₂ H₅, COOH, SO₃ H, OSO₃ H, CN or Cl.

Substituents of optionally substituted C₁ -C₄ -alkyl and C₁ -C₄ -alkoxy radicals T₁ and T₂ are, for example, C₁ -C₄ -alkoxy or OSO₃ H.

Substituents of optionally substituted phenyl and phenoxy radicals T₁ and T₂ are, for example, Cl, Br, C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy and SO₃ H.

Suitable substituents R' are, for example, the following: halogen, such as Cl, C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy and COOH.

Examples of substituents X are: halogen atoms, such as fluorine, chlorine or bromine; the sulphonic acid group, lower alkyl, such as methyl, ethyl, n-propyl, i-propyl, n-butyl or t-butyl, a thioether , for example one of the general formula --S--R₁, or an ether group, for example one of the general formula --O--R₂, in which

R₁ denotes a substituent from the group consisting of alkyl and substituted alkyl, such as, for example, phenyl which is substituted by substituents from the group consisting of hydroxyl, lower alkoxy, sulphato, sulpho, carboxyl and phenyl, such as, for example, phenyl which is substituted by substituents from the group consisting of nitro, sulpho and carboxyl, and

R₂ is a hydrogen atom or has the abovementioned meaning of R₁, or is an optionally substituted amino group, for example one of the general formula --NR₃ R₄, in which

R₃ is a hydrogen atom, an aliphatic radical, an araliphatic radical or a cycloaliphatic radical, such as, for example, a lower allyl radical, which can be substituted by one or two substituents from the group consisting of hydroxyl, sulphato, lower alkoxy, sulpho, carboxyl and phenyl, or a cyclohexyl radical, and

R₄ represents a hydrogen atom, an aliphatic radical, for example a lower alkyl radical, which can be substituted by hydroxyl, lower alkoxy, sulphato, sulpho and carboxyl, or represents an optionally substituted aromatic radical, such as, for example, a phenyl or naphthyl radical, which can be substituted by one or two substituents from the group consisting of hydroxyl, carboxyl, sulpho, lower- alkyl and lower alkoxy, or represents an optionally substituted araliphatic radical, such as, for example, a lower alkyl radical, which is substituted by phenyl or naphthyl, or represents a hydroxyl or a lower alkoxy group, or represents an optionally substituted amino group, such as, for example, the amine group or a phenylamino or lower alkylamino group, or in which

R₃ and R₄ together with the nitrogen atom form a heterocyclic ring with an alkylene radical of 2 to 8, preferably 5 to 7 C atoms, or a heterocyclic ring which contains two or three lower alkylene radicals and 1 or 2 hetero atoms, such as, for example, a nitrogen atom or oxygen atom, such as, for example, the morpholine, piperidine or piperazine ring.

An optionally substituted alkylene radical A is, for example, an optionally substituted C₂ -C₆ -alkylene radical, and preferably a C₂ -C₆ -alkylene radical which is unsubstituted or substituted, for example, by hydroxyl, sulpho, sulphato, C₁ -C₄ -alkoxy, carboxyl, , halogen, phenyl, sulphophenyl or C₂ -C₅,-alkoxycarbonyl and/or optionally interrupted by 1 to 2 groups --O--, --N(R") --, wherein R" denotes C₁ -C₄ -alkyl, acetyl or, in particular, hydrogen, --S--, --SO₂ --or a cycloaliphatic or heterocyclic-aliphatic radical.

Examples of suitable alkylene radicals A are 1,2-ethylene 1,2- and 1,3-propylene, 1-ethyl-1,2-ethylene, 2-hydroxy-1,3-propylene, 2-sulphato-1,3-propylene, 1- and 2-phenyl-1,3-propylene, 2-(4'-sulphophenyl)-1,3-propylene, 1,4-, 2,3- and 2,4-butylene, 1,2-dimethyl-1,2-ethylene, l-phenyl-1,2-ethylene, 2-methyl-1,3-propylene, 2,2-dimethyl-1,3-propylene, 1-chloro-2,3-propylene, 1,5- and 2,4-pentylene, 2-methyl-2,4-pentylene, 1-carboxy-1, 5-pentylene, 2,3-diphenyl-1,4-butylene, 1-methoxy-carbonyl-1, 5-pentylene, 1,6- and 2,5-hexylene, 2-carboxy-1, 3-propylene, 2-methoxy-1,3-propylene, a radical of the formula --CH₂ --CH₂ --Z'--CH₂ --CH₂ --, wherein Z' denotes --O--, --S--, --SO₂ --, --NH--or --N(CH₃)--, or a radical of the formula ##STR5##

An alkylene radical A is particularly preferably a C₂ -C₄ -alkylene radical which is unsubstituted or substituted by hydroxyl, sulpho, sulphato, methoxy, carboxyl or sulphophenyl, and especially preferably a 1,2-ethylene or 1,2- or 1,3-propylene radical which is unsubstituted or substituted by hydroxyl or sulphato. In a particularly preferred embodiment of the invention, A represents 1,2-ethylene, 1,2- or 1,3-propylene or 2-sulphato-1,3-propylene.

optionally substituted cycloalkylene A is, for example, optionally substituted C₅ -C₉ -cycloalkylene, and preferably cyclopentylene or cyclohexylene which is unsubstituted or mono- or polysubstituted by C₁ -C₃ -alkyl; A here is particularly preferably cyclohexylene which is unsubstituted or substituted by 1 to 4 methyl groups.

Examples of suitable cycloaliphatic radicals A are:

1,3- and 1,4-cyclohexylene, 4-methyl-1,3-cyclohexylene, 2-methyl-1,3-cyclohexylene, 5,5-dimethyl-1,3-cyclohexylene 2-methyl-1,4-cyclohexylene, 4,6-dimethyl-1,3-cyclohexylene hexylene and 4-methyl-1,2-cyclohexylene.

If A represents a bivalent aryl radical, this can be, for example, a phenylene, biphenylene or naphthylene radical which is unsubstituted or substituted, for example, by C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, sulpho, halogen or carboxyl.

Examples of arylene radicals A are: 1,3- and 1,4-phenylene 2-sulpho-1,4-phenylene, 2,5-disulpho-1,4-phenylene, 4-sulpho-1,3-phenylene, 2-methyl-1,4-phenylene, 2-carboxy-1,4-phenylene, 2-methoxy-1,4-phenylene, 4,8-disulpho-2,6-naphthylene, 8 -sulpho-2,6-naphthylene, 1,4-naphthylene and 1,1'-biphenyl-4,4'-diyl.

An arylene radical A preferably represents a 1,3- or 1,4-phenylene radical which is unsubstituted or substituted by sulpho, methyl, methoxy or carzoxyl, or represents a naphthylene radical which is unsubstituted or substituted by sulpho.

An arylene-radical A is particularly preferably 1,3- or 1,4-phenylene which is unsubstituted or substituted by sulpho.

If A denotes an optionally substituted aralkylene radical, it can be, for example, a C₁ -C₆ -alkylene-phenylene a phenylene-C₁ -C₆ -alkylene-phenylene, a C₁ -C₃ -alkylenephenylene-C₁ -C₃ -alkylene or a methylene-naphthylene-methylene radical, it being possible for the alkylene in these aralkylene radicals to be optionally substituted as described above and/or interrupted by one of the above-mention hetero groups and for the phenylene and naphthylene optionally also to carry 1 or 2 substituents chosen from the group consisting of sulpho, carboxyl, sulphamoyl, carbamoyl, methyl, ethyl, methoxy, ethoxy, nitro, chloro, amino, N-methyl and N-ethylamino, N,N'-dimethyl and N,N'-diethylamino and phenylamino.

Examples of suitable aralkylene radicals A are: ##STR6##

An aralkylene radical A is preferably a C₁ -C₃ -alkylenephenylene or C₁ -C₂ -alkylene-phenylene-C₁ -C₂ -alkylene radical, which is unsubstituted or substituted, for example, by methyl, methoxy, chlorine or sulpho in the phenyl part.

A preferably denotes a C₂ -C₄ -alkylene radical which is unsubstituted or substituted by hydroxyl, sulpho, sulphato, methoxy, carboxyl or sulphophenyl, --CH₂ --CH₂ --Z'--CH₂ --CH₂ --, wherein Z' denotes --O--, --S--, --SO₂ --, --NH--or --N(CH₃)--, a cyclohexylene radical which is unsubstituted or substituted by 1 to 4 methyl groups, a 1,3- or 1,4-phenylene radial which is unsubstituted or substituted by sulpho, or a C₁ -C₃ -alkylenephenylene or C₁ -C₂ -alkylene-phenylene-C₁ -C₂ -alkylene radical, wherein the phenylene is in each case unsubstituted or substituted by methyl, methoxy, chlorine or sulpho.

Compounds in which m is 1 are described, for example, in EP-A-485 329.

The above formula radical R₁, but preferably not the formula radical R₂, can also denote the benzothiazol-2-yl radical.

Aliphatic radicals are quite generally, for example, optionally substituted alkyl radicals having 1 to 10 C atoms, which can optionally be interrupted by hetero atoms or hetero atom groupings, for example by O, N, S, CONH, SO₂ NH or SO₂.

Lower alkyl or alkoxy radicals are those having 1 to 4 C atoms.

Preferred dyestuffs in the context of the formula (1) correspond to the formula ##STR7## wherein T₁, T₂ and X have the meaning given. Dyestuffs of the formulae (1) or (2) which are furthermore preferred are those in which T₁ and T₂ =Cl or OCH₃.

X preferably represents a chlorine atom or a sulpho group, or a radical of the formula --S--R₁ or --O--R₂, in which R₁ preferably denotes a phenyl radical, which can be substituted by chlorine or nitro, or a lower allyl radical, which can be substituted by hydroxyl or carboxyl, and R₂ is preferably a hydrogen atom or a lower alkyl radical or a phenyl radical, which can be substituted by sulpho or carboxyl. The formula radical X furthermore preferably denotes an amino group of the formula --NR₃ R₄, in which R₃ preferably denotes a hydrogen atom or a lower alkyl group, which can be substituted by a carboxyl or sulpho group, and in which R₄ preferably denotes a hydrogen atom or a lower alkyl group, which can be substituted by a hydroxyl, sulphato, carboxyl, sulpho or lower alkoxy group, a phenyl radical or a cyclohexyl radical.

Amine radicals --NR₃ R₄ which are furthermore preferred are those in which R₃ and R₄ form a ring, optionally including a further hetero atom.

Examples of preferred radicals x are: ##STR8##

Dyestuffs of the formula (2) which are of particular interest for the process according to the invention are the dyestuffs of the formulae ##STR9## especially the dyestuff of the formula (2a).

Other particularly preferred dyestuffs of the formula (I) are: ##STR10##

Yellow-dyeing dyestuffs which are used in the processes according to the invention are preferably at least one dyestuff of the formulae (3) and (4) ##STR11## wherein R₅ and R₆ denotes hydrogen, C₁ -C₈ -alkyl, C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido, C₂ -C₆ -alkanoyl-amino which is optionally substituted in the alkyl part, or optionally substituted arylazo,

R₇, R₈, R₉,R₁₀, R₁₁ and R₁₂ denote hydrogen, C₁ -C₈ -alkyl, C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part and

A₁ is a radical of the formula ##STR12## and A₂ is a radical of the formula ##STR13## wherein R₁₃ and R₁₄ denote hydrogen or optionally substituted C₁ -C₈ -alkyl,

Y₁ in the radical of the formula (7) and Y₂ in the radical of the formula (8) denote hydroxyl, C₁ -C₄ -alkoxy, chlorine, bromine, C₁ -C₄ -alkylthio, amino, N-mono- or N,N-di-C₁ -C₄ -alkylamino which is unsubstituted or substituted by hydroxyl, sulpho, carboxyl or C₁ -C₄ -alkoxy in the alkyl part, cyclo-hexylamino, phenylamino which is unsubstituted or substituted by C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, carboxyl, sulpho and/or halogen in the phenyl part, or N--C₁ -C₄ -alkyl-N-phenylamino, morpholino or 3 -carboxy-or 3-carbamoylpyridin-1-yl,

B₁ in the radical of the formula (8) is a bridge member and

R₁₅, R₁₆, R₁₇ and R₁₈ denote hydrogen, C₁ -C₈ -alkyl, C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part.

Possible halogen for R₅, R₆, R₇, R₈, R₉, R₁₀, R₁₁ and R₁₂ in the formulae (3) and (4) and R₁₅, R₁₆, R₁₇ and R₁₈ in the formulae (9) to (11) are, independently of one another, for example, fluorine, bromine or, in particular, chlorine.

Possible C₁ -C₈ -alkyl for R₅, R₆, R₇, R₈, R₉, R₁₀, R₁₁, and R₁₂ in the formulae (3) and (4) R₁₃ and R₁₄ in the formulae (6) to (8) and R₁₅, R₁₆, R₁₇ and R₁₈ in the formulae (9) to (11) are, independently of one another, for example, methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl isobutyl, pentyl, hexyl, heptyl and octyl. R₅ to R₁₈ are preferably C₁ -C₈ -alkyl.

The radicals R₁₃ and R₁₄ in the formulae (6) to (8) as C₁ -C₈ -alkyl can be substituted, for example by C₁ -C₄ -alkoxy, C₁ -C₄ -alkoxycarbonyl, hydroxyl, halogen, such as, for example, chlorine or fluorine, carboxyl, cyano, sulpho or sulphato.

Examples which may be mentioned are carboxymethyl, β-carboxyethyl, methoxycarbonylmethyl, ethoxycarbonylmethyl, β-methoxyethyl, β-ethoxyethyl, β-chloroethyl, γ-chloropropyl, β-hydroxyethyl, β-hydroxybutyl, β-cyanoethyl, sulphomethyl, β-sulphoethyl and β-sulphatoethyl.

R₁₃, and R₁₄ preferably have the same meanings. Preferably, R₁₃ and R₁₄ are hydrogen or C₁ -C₄ -alkyl, in particular hydrogen.

Possible C₁ -C₈ -alkoxy for R₅, R₆, R₇, R₈, R₉, R₁₀ and R₁₂ in the formulae (3) and (4) and R₁₅, R₁₆, R₁₇ and R₁₈ in the formulae (9) to (11) is, in particular, C₁ -C₄ -alkoxy, such as methoxy, ethoxy, propoxy, isopropoxy, butoxy, sec-butoxy, isobutoxy or tert-butoxy.

Possible C₂ -C₈ -alkanoylamino for R₅, R₆, R₇, R₈, R₉, R₁₀, R₁₁ and R₁₂ in the formulae (3) and (4) and R₁₅, R₁₆, R₁₇ and R₁₈ in the formulae (9) to (11) are, in particular, C₂ -C₄ -alkanoylamino, such as, for example, acetylamino or propionylamino. Possible C₂ -C₆ -alkanoylamino which is substituted in the alkyl part are, for example, the radicals substituted by carboxyl or, in particular, hydroxyl.

Possible arylazo for R₅ and R₆ in the formula (3) are, independently of one another, for example, naphthylazo or, preferably, phenylazo radicals, wherein the radicals mentioned can in each case be unsubstituted or further substituted, for example by sulpho, C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy and/or halogen. This radical is, in particular, a phenylazo radical which is unsubstituted or Substituted by sulpho, methyl, methoxy and/or chlorine.

Examples of substituents Y₁, in the formula (7) and Y₂ in the formula (8) are hydroxyl, methoxy, ethoxy, n- or iso-propoxy chlorine, methylthio, ethylthio, amino, methylamino ethylamino, carboxymethylamino, β-hydroxyethylamino N,N-di-β-hydroxyethylamino, β-sulphoethylamino, phenylamino, o-, m- or p-methylphenylamino, o-, m- or p-methylphenylamino, o-, m- or p-chlorophenylamino, o_, m- or p-sulphenylamino, 2,4- or 2,5-disulphophenylamino o-carboxyphenylamino, N-ethyl-N-phenylamino, N-methyl-N-phenylamino and morpholino.

Preferably, Y₁, and Y₂ independently of one another are chlorine, amino, N-mono- or N,N-di-C₁ -C₄ -alkylamino which is unsubstituted or substituted by hydroxyl in the allyl part, phenylamino or morpholino, in particular morpholino or chlorine.

Possible bridge members B₁ in formula (8) are, for example, the radicals of the formulae ##STR14## wherein R₁₃ and R₁₄ have the abovementioned meanings and preferred meanings. Preferably, B₁ is a radical of the formula (12a).

Dyestuffs which are preferably used are those of the formulae (3) and (4) wherein R₅, R₆, R₇, R₈, R₉, R₁₀, R₁₁ and R₁₂ and R₁₅, R₁₆ , R₁₇ and R₁₈ in the formulae (9) to (11) are hydrogen, C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, C₂ -C₄ -alkanoylamino, halogen or sulpho, and R₅, R₆, R₇ and R₈ in the formulae (3) and (4) and R₁₅, R₁₆, R₁₇ and R₁₈ in the formulae (9) to (11) are, in particular, hydrogen or sulpho.

Dyestuffs which are particularly preferably used are those of the formulae (3), (4) and (9) to (11) wherein R₅, R₆, R₇, R₈, R₁₅, R₁₆, R₁₇ and R₁₈ are hydrogen or sulpho, R₉, R₁₀, R₁₁, and R₁₂ are hydrogen, C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, C₂ -C₄ -alkanoylamino, halogen or sulpho, B₁ is a radical of the formula (12a) and Y₁ and Y₂ are chlorine, amino, N-mono- or N,N-di-C₁ -C₄ -alkylamino which is unsubstituted or substituted by hydroxyl in the alkyl part, phenylamino or morpholino, in particular morpholino or chlorine.

Dyestuffs of the formulae (3) and (4) which are of particular interest for the process according to the invention are the dyestuffs of the formulae (16) to (25) ##STR15## in particular the dyestuffs (18), (19), (23) and (25).

Red-dyeing dyestuffs which are used for the process according to the invention are preferably at least one dyestuff of the formulae (26) to (31) ##STR16## wherein R₁₉, R₂₀ and R₂₁ denote bydrogen, optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoyl no which is optionally substituted in the alkyl part and Y₁, has the above-mention meanings and preferred meanings, ##STR17## wherein R₂₂, R₂₃, R₂₄, R₂₅, R₂₆ and R₂₇ denote hydrogen, optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part and A₃ is a radical of the formula ##STR18## wherein R and R' denote hydrogen or optionally substituted C₁ -C₈ -alkyl and Y₃ denotes hydroxyl, C₁ -C₄ -alkoxy, chlorine, bromine, C₁ -C₄ -alkylthio, amino, N-mono- or N,N-di-C₁ -C₄ -alkylamino which is unsubstituted or substituted by hydroxyl, sulpho, carboxyl or C₁ -C₄ -alkoxy in the alkyl part, cyclohexylamino, phenylamino which is unsubstituted or substituted by C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, carboxyl, sulpho and/or halogen in the phenyl part, or N-C₁ -C₄ -alkyl-N-phenylamino, morpholino or 3-carboxy- or 3-carbamoylpyridin-1-yl, ##STR19## wherein R₂₈, R₂₉, R₃₀ and R₃₁ are hydrogen, optionally substituted C₁ -C₄ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido, sulphamoyl or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part and A₄ has the meanings given above for A₃ under formula (27), ##STR20## wherein R₃₂, R₃₃, R₃₄, R₃₅, R₃₆, R₃₇ and R₃₈ are hydrogen, optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the allyl part and R₃₉ is benzoylamino which is optionally substituted in the phenyl ring or a radical of the formula ##STR21## which is optionally further substituted in the phenyl ring and wherein R and R' are hydrogen or optionally substituted C₁ -C₈ -alkyl and Y₄ has the meanings given above for Y₃ under formula (27), ##STR22## wherein R₄₀, R₄₁, R₄₂, R₄₃, R₄₄, R₄₅, R₄₆ and R₄₇ are hydrogen, optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the allyl part, and wherein R₄₀ and R₄₆ can additionally denote phenylazo which is optionally substituted in the phenyl ring, and A₅ has the meanings given above for A₃ under formula (27), or is a radical of the formula ##STR23## wherein R and R' are hydrogen or optionally substituted C₁ -C₈ -alkyl and Y₅ has the meanings given above for Y₃ under formula (27), ##STR24## wherein R₄₈, R₄₉, R₅₀, R₅₁, R₅₂, R₅₃ and R₅₄ are hydrogen, optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part, and wherein R₅₃ can additionally denote phenylazo which is optionally substituted in the phenyl ring, and A₆ has the meanings give above for A₃ under formula (27).

Possible halogen for R₁₉, R₂₀ and R₂₁ in formula (26), R₂₂ R₂₃, R₂₄, R₂₅, R₂₆, and R₂₇ in the formula (27), R₂₈, R₂₉, R₃₀ and R₃₁ in formula (28), R₃₂, R₃₃, R₃₄, R₃₅, R₃₆, R₃₇, and R₃₈ in formula (29), R₄₀, R₄₁, R₄₂, R₄₃, R₄₄, R₄₅, R₄₆, and R₄₇ in formula (30) and R₄₈, R₄₉, R₅₀, R₅₁, R₅₂, R₅₃, and R₅₄ in formula (31) independently of one another are, for example, fluorine, bromine or, in particular, chlorine.

Possible optionally substituted C₁ -C₈ -alkyl for the abovementioned substituents for the dyestuffs of the formulae (26) to (31) and for R and R' is, in particular, C₁ -C₄ -alkyl, such as methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl or isobutyl, and the radicals substituted, for example, by C₁ -C₄ -alkoxy, C₁ -C₄ -alkoxycarbonyl, hydroxyl, halogen, such as, for example, chlorine or fluorine, carboxyl, cyano, sulpho or sulphato.

The abovementioned meanings and preferred meanings apply to R and R'.

Possible optionally substituted C₁ -C₈ -alkoxy for the abovementioned substituents of the dyestuffs of the formulae (26) to (31) is, in particular, C₁ -C₄ -alkoxy, such as methoxy, ethoxy, propoxy, isopropoxy, butoxy, sec-butoxy, isobutoxy or tert-butoxy, and the radicals substituted, for example, by hydroxyl or carbonxyl.

Possible C₂ -C₆ -alkanoylamino for the abovementioned substituents of the dyestuffs of the formulae (26) to (31) is, in particular, C₂ -C₄ -alkanoylamino, such as, for example, acetylamino or propionylamino. Possible C₂ -C₆ -alkanoylamino which is substituted in the alkyl part are, for example, the radicals substituted by hydroxyl.

R₃₉ as benzoylamino or as a radical of the formula ##STR25## and radicals R₄₀, R₄₆, and R₅₃ as phenylazo can be unsubstituted or substituted in the phenyl ring. Examples of substituents which may be mentioned are halogen, amino, sulpho, carboxyl, ureido, C₂ -C₄ -alkanoylamino which is optionally further substituted by hydroxyl in the alkyl part, C₁ -C₄ l-allyl, C₁ -C₄ -alkoxy which is optionally further substituted by hydroxyl, and benzoylamino or phenylamino which is optionally further substituted by carboxyl, halogen, sulpho, C₁ -C₄ -alkyl or C₁ -C₄ -alkoxy in the phenyl ring, in particular halogen, sulpho or C₁ -C₄ -alkyl.

The meanings and preferred meanings mentioned above for Y₁, and Y₂ apply to Y₃, Y₄ and Y₅.

Red-dyeing dyestuffs which are used for the process to the invention are preferably at least one of the formula (32) to (44) ##STR26## in particular dyestuffs of the formulae (32), (35), (37) to (40) and (43).

Navy blue- or black-dyeing dyestuffs which are used in the process according to the invention are preferably at least one dyestuff of the formulae (45) to (48) ##STR27## wherein D₁ denotes optionally substituted phenyl or naphthyl, R₅₅, R₅₆, R₅₇ and R₅₈ denote hydrogen, optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the allyl part and R₅₉ denotes hydrogen, optionally substituted C₁ -C₈ -allyl, C₂ -C₆ -alkanoyl which is optionally substituted in the allyl part or phenyl or benzoyl which is optionally substituted in the phenyl ring, ##STR28## wherein D₂ and D₃ denote optionally substituted naphthyl and R₆₀ and R₆₁ denote hydrogen, optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part, ##STR29## wherein R₆₂, R₆₃, R₆₄, R₆₅ and R₆₆ denote hydrogen, optionally substituted C₁ -C₈ -allyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part and R₆₇ denotes hydrogen, optionally substituted C₁ -C₈ -alkyl, optionally substituted C₂ -C₆ -alkanoyl or phenyl or benzoyl which is optionally substituted in the phenyl ring, ##STR30## wherein R₆₈, R₆₉, R₇₀ and R₇₁ denote oydrogen, optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part.

Possible halogen for R₅₅, R₅₆, R₅₇ and R₅₈, in the formula (45), R₆₀ and R₆₁ in the formula (46), R₆₂, R₆₃, R₆₄, R₆₅ and R₆₆ in the formula (47) and R₆₈, R₆₉, R₇₀ and R₇₁ in the formula (48) are, independently of one another, for example, fluorine, bromine or, in particular, chlorine.

Possible optionally substituted C₁ -C₈ -alkyl for R₅₅, R₅₆, R₅₇ and R₅₈ in the formula (45), R₆₀ and R₆₁ in the formula (46), R₆₂, R₆₃, R₆₄, R₆₅ and R₆₆ in the formula (47) and R₆₈, R₆₉, R₇₀ and R₇₁ in the formula (48) are C₁ -C₄ -alkyl, such as, for example, methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl and isobutyl, and the radicals substituted, for example, by C₁ -C₄ -alkoxy, C₁ -C₄ -alkoxycarbonyl, halogen, such as, for example, chlorine or fluorine, carboxyl, cyano, sulpho or sulphato.

Possible C₁ -C₈ -alkoxy, for R₅₅, R₅₆, R₅₇ and R₅₈ in the formula (45), R₆₀ and R₆₁ in the formula (46), R₆₂, R₆₃, R₆₄, and R₆₅ and R₆₆ in the formula (47) and R₆₈ R₆₉, R₇₀ and R₇₁ in the formula (48) are, in particular, C₁ -C₄ -alkoxy, such as methoxy, ethoxy, propoxy, isopropoxy, butoxy, sec-butoxy, isobutoxy butoxy or tert-butoxy.

Possible C₂ -C₆ -alkanoylamino for R₅₅, R₅₆, R₅₇ and R₅₈ in the formula (45), R₆₀ and R₆₁ in the formula (46), R₆₂, R₆₃, R₆₄, R₆₅ and R₆₆ in the formula (47) and R₆₈, R₆₉, R₇₀ and R₇₁ in the formula (48) are, in particular, C₂ -C₄ -alkanoylamino, such as, for example, acetylamino or propionylamino. Possible C₂ -C₆ -alkanoylamino which is substituted in the alkyl part are, for example, the radicals substituted by carboxyl or, in particular, hydroxyl.

Possible C₂ -C₆ -alkanoyl for R₅₉ in formula (45) and R₆₇ in formula (47) is, in particular, C₂ -C₄ -alkanoyl, such as, for example, acetyl or propionyl. Possible C₂ -C₆ -alkanoyl which is substituted in the allyl part are, for example, the radicals substituted by hydroxyl.

The radicals D₁ as phenyl or naphthyl, D₂ and D₃ as naphthyl and R₅₉ and R₆₇ as phenyl or benzoyl can be unsubstituted or substituted. Examples of substituents which may be mentioned are halogen, amino,sulpho, carboxyl, ureido, C₂ -C₄ -alkanoylamino which is optionally further substituted by hydroxyl in the alkyl part, C₁ -C₄ -alkyl, C₁ -C₄ l-alkoxy which is optionally further substituted by hydroxyl or carboxyl and benzoylamino or phenylamino which is optionally further substituted by carboxyl, halogen, sulpho, C₁ -C₄ -alkyl or C₁ -C₄ -alkoxy in the phenyl ring.

Navy blue- or black-dyeing dyestuffs which are used for the process according to the invention are preferably at least one dyestuff of the formulae (49) to (56) ##STR31## in particular dyestuffs of the formulae (49) to (52).

Particularly preferably, at least one blue-dyeing dyestuff of the formula (1) is used together with at least one yellow-dyeing dyestuff of the formulae (16) to (25) or at least one red-dyeing dyestuff of the formulae (26) to (31) or at least one navy blue- or black-dyeing dyestuff of the formulae (49) to (56).

Especially preferably, at least one blue-dyeing dyestuff of the formulae (2a) to (2h) is used together with at least one yellow-dyeing dyestuff of the formulae (18), (19), (23) or (25) or at least one red-dyeing dyestuff of the formulae (32), (35), (37) to (40) or (43) or at least one navy blue- or black-dyeing dyestuff of the formulae (49) to (52), possible blue-dyeing dyestuffs preferably being the dyestuffs of the formula (2a) or (2b).

In a particularly important embodiment of the process according to the invention, a blue-dyeing dyestuff of the formula (2a) is used together with a yellow-dyeing dyestuff of the formula (19) or together with a red-dyeing dyestuff of the formula (38) or (40) or together with a navy blue- or black-dyeing dyestuff of the formula (49), (51) or (52).

The process of the present invention is particularly suitable for dichroic dyeing or printing, at least one blue-dyeing dyestuff of the formula (1) being used together with at least one yellow-dyeing dyestuff or at least one red-dyeing dyestuff or at least one navy blue-or black-dyeing dyestuff. The abovementioned meanings and preferred meanings apply here to the dyestuffs to be used for dichromatic dyeing or printing.

Dichromaticity is to be understood here as additive colour mixing of appropriately chosen yellow-, red- and blue-dyeing dyestuffs in the amounts necessary to achieve the desired shade.

The blue-dyeing dyestuffs of the formula (1) used for the process according to the invention and the yellow-dyeing dyestuffs of the formulae (3) and (4) and the red-dyeing dyestuffs of the formulae (26) to (31) and the navy blue-or black-dyeing dyestuffs of the formulae (45) to (48) are known or can be prepared analogously to known dye-stuffs.

In respect of their dyeing properties, the blue-dyeing dyestuffs of the formula (1) used for the process according to the invention and the yellow-dyeing dyestuffs of the formulae (3) and (4) and the red-dyeing dyestuffs of the formulae (26) to (31) and the navy blue-or black-dyeing dyestuffs of the formulae (45) to (48) can be called directly absorbing or direct dyestuffs (C.I. direct dyes).

The blue-dyeing dyestuffs of the formula (1) used for the process according to the invention and the yellow-dyeing, the red-dyeing and the navy blue- or black-dyeing dyestuffs are present either in the form of their free sulphonic acid or, preferably, as salts thereof, such as, for example, the alkali metal, alkaline earth metal or ammonium salts or as salts of an organic amine.

Examples which may be mentioned are the sodium, potassium, lithium or ammonium or salts or the salt of triethanolamine.

The amounts in which the blue-dyeing dyestuffs of the formula (1) and the yellow-dyeing, the red-dyeing and the navy blue- or black-dyeing dyestuffs can be used in the dyebaths or printing pastes for the process according to the invention vary according to the desired depth of colour, and in general amounts of 0.01 to 10% by weight, in particular 0.1 to 6% by weight, based on the goods to be dyed, have proved to be advantageous.

Possible fibre materials containing hydroxyl groups, in particular textile fibre materials, which can be dyed or printed by the process according to the invention are, for example, those of cellulosic fibres, such as cotton, linen or hemp, in particular cotton, and regenerated cellulose fibres, such as, for example, viscous staple, rayon or viscous.

Fibre materials containing hydroxyl groups are likewise to be understood as blended fibres containing such fibre materials. Possible such blended fibres are, for example, those which also comprise naturally occurring or synthetic polyamide fibre materials or polyacrylic or polyester fibre materials, in addition to cellulosic fibre materials. Examples which may be mentioned are wool/cotton, polyamide/cotton, polyacrylic/cotton or, in particular, polyester/cotton blended fibres.

The textile fibre materials can be present in the most diverse states of processing, such as, for example, as fibre, yarn, woven fabric or knitted fabric.

The process according to the invention is suitable for dyeing, for example by the exhaustion method or the cladding method, and for printing in accordance with the generally customary processes used for this purpose.

Dyeing by the exhaustion method is preferred. In this case, dyeing is carried out as a rule at a temperature of 60° to 110° C., in particular 90° to 105° C., at a pH of, for example, up to 10, in particular 7 to 9, preferably from an aqueous liquor at a liquor ratio of 1:5 to 1:80, in particular 1:10 to 1:20.

In a particularly interesting embodiment of the process according to the invention, dyeing is carried out in the presence of a salt, such as, for example, in the presence of an alkali metal halide, in particular an alkali metal chloride, or an alkali metal sulphate. In this case, the amount of salt is added in its entirety or in portions shortly before or after the dyeing temperature has been reached. The range shortly before the dyeing temperature has been reached is to be understood as meaning, for example, the range of heating up in order to reach the dyeing temperature, such as, for example, the temperature range from 80° to 98° C. Preferably, the salt is added directly here w the dyeing temperature is reached. The use of a total amount of salt which depends on the total amount of dyestuffs employed has proved to be advantageous for this embodiment of the process according to the invention. A total amount of salt which increases with the total amount of dyestuffs employed is as a rule used here. In this case, 6 to 12 g/l of salt, for example, are used up to a total amount of dyestuff of 1%, 12 to 20 g/l of salt, for example, are used up to a total amount of dyestuff of 2%, and 20 to 40 g/l of salt, for example, are used above a total amount of dyestuff of 2%. The amounts stated for the dyestuffs here are percentages by weight, based on the fibre material employed, and as a rule correspond to the dyestuffs as they are obtained after synthesis, for example by salting out.

Dyeing by the exhaustion method is preferred for this embodiment of the process according to the invention.

Fibre materials, in particular textile fibre materials, of blended fibres, such as, for example, of wool/cotton, polyamide/cotton, polyacrylic/cotton or, in particular, polyester/cotton blended fibres can likewise be dyed by the one-bath dyeing process and in the presence of dyestuffs for the other particular types of fibre.

Thus, fibre mixtures of synthetic fibres and cellulosic fibre materials, in particular polyester/cotton blended fabrics, can be dyed under the dyeing conditions for the synthetic fibres in the presence of a disperse dyestuff for the synthetic fibres. Possible synthetic-fibres are, in particular, polyester fibres. If dyeing is carried out in accordance with this embodiment in the presence of salts, such as, for example, an alkali metal halide or an alkali metal sulphate, the addition of the total amount of salt at the start of the dyeing process is preferred.

The dyestuffs used for the process according to the invention can be readily combined with other dyestuffs, in particular disperse dyestuffs. The dyestuffs used for the process according to the invention have an adequate high temperature stability and can thus be used for dyeing under the dyeing conditions for polyester fibres, that is to say at temperatures in the range from about 100° to 150° C., preferably from 120° to 130° C., from an aqueous liquor and at a pH of 4 to 7.5, preferably 5 to 7.

It is thus possible to employ customary disperse dyestuffs- together with the dyestuffs used for the process according to the invention in a one-stage, one-bath process for dyeing polyester/cotton blended fibres (blended fabric), the two types of fibre being dyed uniformly and in a fast manner by the particular dyestuff. If a disperse dyestuff with the same shade as the dyestuff mixture used for the process according to the intention is used, it is also possible to obtain solid dyeings.

According to this embodiment of the process according to the invention, dyeing of textile blended fibres (blended fabrics), for example those of polyester and cellulose fibres, can be simplified Substantially. The dyeing of each type of fibre of a fibre mixture in a separate operation using different dyeing conditions, which is customary per se, is therefore no longer necessary.

The dyestuffs used for the process according to the invention are distinguished by a uniform colour build-up coupled with a constancy of shade in various concentrations and a good ability to be combined. Dyeings and prints of good fibre and surface levelness and good general fastness properties, in particular good fastnesses to rubbing, wet processing, wet rubbing, perspiration and light, are obtained. If necessary, the wet-fastness properties, in particular the fastness to washing, of the resulting dyeings and prints can be further improved considerably by after-treatment with so-called fixing agents.

The following examples serve to illustrate the invention. Parts and percentages relate to the weight, unless stated otherwise. Parts by weight and parts by volume bear the same relationship to one another as the kilogram and litre. The temperatures are stated in degrees Celsius.

Example 1

10 parts of a non-mercerized cotton fabric are wetted with one part of a nonionic wetting agent at a temperature of 80° C. The cotton fabric pretreated in this way is squeezed off and introduced in a liquor ratio of 1:20 into a dyestuff solution, wed to 40° C., which comprises 0.5% of the blue-dyeing dyestuff of the formula ##STR32## and 0.3% of the yellow-dyeing dyestuff of the formula ##STR33## based on the weight of the cotton fabric, in deionized water. The dyebath is left at a temperature of 40° C. for 10 minutes, the temperature of the dyebath is then increased to the boiling temperature at a heating up rate of 2° C./minute, and after dyeing has been carried out at this temperature for 10 minutes, 5 g/l of sodium sulphate are added. Dyeing is continued at the boiling temperature for 20 minutes and the dyebath is then cooled to a temperature of about 80° to 85° C. with a cooling down rate of 2° C./minute and left at this temperature for 15 minutes. The dyed cotton fabric is then removed from the bath, rinsed twice with water for in each case 5 minutes at room temperature, squeezed off and dried at a temperature of about 80° to 90° C. in a drying cabinet. A is cotton fabric which has been dyed levelly in a green shade and has good general fastness properties is obtained. To improve the wet-fastness properties, in particular the fastness to washing, the resulting cotton fabric can be after-treated with cationic fixing agents.

Examples 2 to 18

If the procedure is as described in Example 1, but instead of the dyestuffs described therein, the dyestuffs shown in column 2 in the following table are used in the amounts shown and the amount of sodium sulphate shown in column 3 is used instead of 5 g/l of sodium sulphate, a cotton fabric dyed in the shade shown in column 4 is obtained.

                  TABLE 1                                                          ______________________________________                                         Example  Dyestuffs Sodium sulphate                                                                              Shade                                         ______________________________________                                         2        0.5% (2a) 5 g/l         blue                                                   0.3% (51)                                                             3        0.5% (2a) 5 g/l         pale blue                                              0.2% (40)                                                             4        0.5% (2a) 5 g/l         reddish blue                                           0.1% (36)                                                             5        0.5% (2a) 5 g/l         blue-violet                                            0.3% (34)                                                             6        0.5% (2a) 5 g/l         grey-violet                                            0.3% (37)                                                             7        0.27% (2a)                                                                               3 g/l         pale blue                                              0.046% (40)                                                           8        0.05% (2a)                                                                               10 g/l        brick red                                              1.14% (39)                                                            9        0.23% (2a)                                                                               10 g/l        red-brown                                              0.8% (39)                                                             10       0.23% (2a)                                                                               3 g/l         mint                                                   0.05% (19)                                                            11       0.02% (2a)                                                                               3 g/l         antique pink                                           0.34% (37)                                                            12       0.17% (2a)                                                                               4 g/l         lilac                                                  0.3% (37)                                                             13       0.68% (2a)                                                                               25 g/l        dark violet                                            1.9% (37)                                                             14       0.75% (2a)                                                                               15 g/l        blue violet                                            0.45% (40)                                                            15       0.9% (2a) 25 g/l        navy blue                                              1.5% (51)                                                             16       0.6% (2a) 20 g/l        midnight                                               1.5% (51)               blue                                          17       0.9% (2a) 30 g/l        dark green                                             0.24% (19)                                                            18       0.45% (2a)                                                                               35 g/l        anthracite                                             2.7% (49)                                                             ______________________________________                                    

Example 19

100 parts of thoroughly wetted polyester/cotton woven fabric which comprises 50 parts of polyester and 50 parts of cotton per 100 parts are introduced into a high temperature jet dyeing unit at a temperature of 40° C. The liquor ratio is 1:10. 1 g/l of a levelling auxiliary, 11.6 parts of the dyestuff of the formula (2a), 2.7 parts of the dyestuff (19), 0.55 part of a yellow-dyeing disperse dyestuff of the formula ##STR34## 0.125 part- of a yellow brown-dyeing disperse dyestuff of the formula ##STR35## and 0.5 part of a blue-dyeing disperse dyestuff of the formula ##STR36## are then added and the pH is brought to a value of 5.5 to 6 with acetic acid.

The dyed liquor is left at a temperature of 40° C. for 5 minutes and 5 g/l of sodium sulphate are then added. The dyebath is then heated to a temperature of 130° C. at a heating up rate of 1.5° C./minute, kept at this temperature for 30 minutes and then cooled to a temperature of 80° C. at a cooling down rate of 1.5° C./minute. The dyebath is left at the temperature of 80° C. for 20 minutes. The dyebath is now drained and the dyed material is washed twice in water warmed to 30° C. for 5 minutes each time. To finish the dyeing, the dyed goods are dried in the customary manner or finished with a suitable cationic after-treatment agent.

The dyed goods obtained have a green-blue dyeing of excellent levelness. 

We claim:
 1. A dyestuff mixture comprising at least one blue-dyeing first dyestuff of the formula ##STR37## wherein R is hydrogen or unsubstituted or substituted alkyl,T₁ and T₂ each independently is hydrogen, chlorine, bromine, unsubstituted or substituted C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, phenyl or phenoxy, and X is hydrogen, halogen, a sulphonic acid group, lower alkyl, a thioether group, an ether group, or an unsubstituted or substituted amino group,together with at least one yellow-dyeing dyestuff of the formula (3) or (4) ##STR38## wherein R₅ and R₆ denote hydrogen, C₁ -C₈ -alkyl, C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido, C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part, or unsubstituted or substituted arylazo, R₇, R₈, R₉, R₁₀, R₁₁ and R₁₂ denote hydrogen, C₁ -C₈ -alkyl, C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part and A₁ is a radical of the formula ##STR39## and A₂ is a radical of the formula ##STR40## wherein R₁₃ and R₁₄ denote hydrogen or unsubstituted or substituted C₁ -C₈ -alkyl, Y₁ in the radical of the formula (7) and Y₂ in the radical of the formula (8) denote hydroxyl, C₁ -C₄ -alkoxy, chlorine, bromine, C₁ -C₄ -alkylthio, amino, N-mono- or N,N-di-C₁ -C₄ -alkylamino which is unsubstituted or substituted by hydroxyl, sulpho, carboxyl or C₁ -C₄ -alkoxy in the alkyl part, cyclohexylamino, phenylamino which is unsubstituted or substituted by C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, carboxyl, sulpho and/or halogen in the phenyl part, or N-C₁ -C₄ -alkyl-N-phenylamino, morpholino or 3-carboxy- or 3-carbamoylpyridin-1-yl, B₁ in the radical of the formula (8) is a bridge member and R₁₅, R₁₆, R₁₇ and R₁₈ denote hydrogen, C₁ -C₈ -alkyl, C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoyl-amino which is unsubstituted or substituted in the alkyl part.
 2. A dyestuff mixture according to claim 1, wherein in the dyestuff of the formula (2), T₁ and T₂ each independently is Cl or OCH₃.
 3. A dyestuff mixture according to claim 1, wherein in the dyestuff of the formula (2) X is halogen, sulpho, C₁ -C₄ -alkyl or a thioether, ether or an unsubstituted or substituted amino group.
 4. A dyestuff mixture according to claim 1, wherein the dyestuff of the formula (2) is at least one dyestuff of the formula ##STR41##
 5. A dyestuff mixture according to claim 1, wherein the yellow-dyeing dyestuff is selected from the group consisting of (16) to (25) ##STR42##
 6. A dyestuff mixture according to claim 5, wherein the first dyestuff is ##STR43## and the second dyestuff is ##STR44##
 7. A dyestuff mixture comprising at least one blue-dyeing first dyestuff of the formula ##STR45## wherein R is hydrogen or unsubstituted or substituted alkyl,T₁ and T₂ each independently is hydrogen, chlorine, bromine, unsubstituted or substituted C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, phenyl or phenoxy, and X is hydrogen, halogen, a sulphonic acid group, lower alkyl, a thioether group, an ether group, or an unsubstituted or substituted amino group,together with at least one red-dyeing dyestuff selected from the group consisting of the following dyestuffs of the formulas (26) to (31): ##STR46## wherein R₁₉, R₂₀ and R₂₁ denote hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoyl-amino which is unsubstituted or substituted in the alkyl part, Y₁ is hydroxyl, C₁ -C₄ -alkoxy, chlorine, bromine, C₁ -C₄ -alkylthio, amino, N-mono- or N,N-di-C₁ -C₄ -alkylamino which is unsubstituted or substituted by hydroxyl, sulpho, carboxyl or C₁ -C₄ -alkoxy alkoxy in the alkyl part, cyclohexylamino, phenylamino which is unsubstituted or substituted by at least one of C₁ -C₈ -alkyl, C₁ -C₈ -alkoxy carboxyl, sulpho, and halogen in the phenyl part, or N--C₁ -C₄ -alkyl-N-phenylamino, morpholino or 3-carboxyl- or 3- carbamoylpyridin-1-yl, ##STR47## wherein R₂₂, R₂₃, R₂₄ , R₂₅, R₂₆ and R₂₇ denote hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part, and A₃ is a radical of the formula ##STR48## wherein R and R' denote hydrogen or unsubstituted or substituted C₁ -C₈ -alkyl and Y₃ denotes hydroxyl, C₁ -C₄ -alkoxy, chlorine, bromine, C₁ -C₄ -alkylthio, amino, N-mono- or N,N-di-C₁ -C₄ -alkylamino which is unsubstituted or substituted by hydroxyl, sulpho, carboxyl or C₁ -C₄ -alkoxy in the alkyl part, cyclohexylamino, phenylamino which is unsubstituted or substituted by C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, carboxyl, sulpho and/or halogen in the phenyl part, or N-C₁ -C₄ -alkyl-N-phenylamino, morpholino or 3 -carboxy- or 3-carbamoylpyridin-1-yl, ##STR49## wherein R₂₈, R₂₉, R₃₀ and R₃₁ are hydrogen, unsubstituted or substituted C₁ -C₄ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido, sulphamoyl or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part and A₄ has the meanings given above for A₃ under formula (27), ##STR50## wherein R₃₂, R₃₃, R₃₄, R₃₅, R₃₆, R₃₇ and R₃₈ are hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part and R₃₉ is benzoylamino which is unsubstituted or substituted in the phenyl ring or a radical of the formula ##STR51## which is unsubstituted or further substituted in the phenyl ring and wherein R and R' are hydrogen or unsubstituted or substituted C₁ -C₈ -alkyl and Y₄ has the meanings given above for Y₃ under formula (27), ##STR52## wherein R₄₀, R₄₁, R₄₂, R₄₃, R₄₄, R₄₅, R₄₆ and R₄₇ are hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part, and wherein R₄₀ and R₄₆ can additionally denote phenylazo which is unsubstituted or substituted in the phenyl ring, and A₅ has the meanings given above for A₃ under formula (27), or is a radical of the formula ##STR53## wherein R and R' are hydrogen or unsubstituted or substituted C₁ -C₈ -alkyl and Y₅ has the meanings given above for Y₃ under formula (27), ##STR54## wherein R₄₈, R₄₉, R₅₀, R₅₁, R₅₂, R₅₃ and R₅₄ are hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part, and wherein R₅₃ can additionally denote phenylazo which is unsubstituted or substituted in the phenyl ring, and A₆ has the meanings given above for A₃ under formula (27).
 8. A dyestuff mixture according to claim 7, wherein in the dyestuff of the formula (2), T₁ and T₂ each independently is Cl or OCH₃.
 9. A dyestuff mixture according to claim 7, wherein in the dyestuff of the formula (2) X is halogen, sulpho, C₁ -C₄ -alkyl or a thioether, ether or an unsubstituted or substituted amino group.
 10. A dyestuff mixture according to claim 7, wherein the dyestuff of the formula (2) is at least one dyestuff of the formula ##STR55##
 11. A dyestuff mixture comprising at least one blue-dyeing first dyestuff of the formula ##STR56## wherein R is hydrogen or unsubstituted or substituted alkyl,T₁ and T₂ each independently is hydrogen, chlorine, bromine, unsubstituted or substituted C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, phenyl or phenoxy, and X is hydrogen, halogen, a sulphonic acid group, lower alkyl, a thioether group, an ether group, or an unsubstituted or substituted amino group,together with at least one red-dyeing dyestuff which is at least one dyestuff selected from the group consisting of dyestuffs of the formulas (32) to (44) ##STR57##
 12. A dyestuff mixture according to claim 11, wherein in the dyestuff of the formula (2), T₁ and T₂ each independently is Cl or OCH₃.
 13. A dyestuff mixture according to claim 11, wherein in the dyestuff of the formula (2) X is halogen, sulpho, C₁ -C₄ -alkyl or a thioether, ether or an unsubstituted or substituted amino group.
 14. A dyestuff mixture according to claim 11, wherein the dyestuff of the formula (2) is at least one dyestuff of the formula ##STR58##
 15. A dyestuff mixture comprising at least one blue-dyeing first dyestuff of the formula ##STR59## wherein R is hydrogen or unsubstituted or substituted alkyl,T₁ and T₂ each independently is hydrogen, chlorine, bromine, unsubstituted or substituted C₁ -C₄ -alkyl, C₁ -C₄ l-alkoxy, phenyl or phenoxy, and X is hydrogen, halogen, a sulphonic acid group, lower alkyl, a thioether group, an ether group, or an unsubstituted or substituted amino group,together with at least one navy blue- or black-dyeing dyestuff which is at least one dyestuff selected from the group consisting of dyestuffs of the formulas (45) to (48) ##STR60## wherein D₁ denotes unsubstituted or substituted phenyl or naphthyl, R₅₅, R₅₆, R₅₇ and R₅₈ denote hydrogen optionally substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part and R₅₉ denotes hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl, C₂ -C₆ -alkanoyl which is unsubstituted or substituted in the alkyl part or phenyl or benzoyl which is unsubstituted or substituted in the phenyl ring, ##STR61## wherein D₂ and D₃ denote unsubstituted or substituted naphthyl and R₆₀ and R₆₁ denote hydrogen, unsubstituted substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part, ##STR62## wherein R₆₂, R₆₃, R₆₄, R₆₅ and R₆₆ denote hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is optionally substituted in the alkyl part and R₆₇ denotes hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl, unsubstituted or substituted C₂ -C₆ -alkanoyl or phenyl or benzoyl which is unsubstituted or substituted in the phenyl ring, ##STR63## wherein R₆₈, R₆₉, R₇₀ and R₇₁ denote hydrogen, unsubstituted or substituted C₁ -C₈ -alkyl or C₁ -C₈ -alkoxy, halogen, carboxyl, sulpho, ureido or C₂ -C₆ -alkanoylamino which is unsubstituted or substituted in the alkyl part.
 16. A dyestuff mixture according to claim 15, wherein in the dyestuff of the formula (2), T₁ and T₂ each independently is Cl or OCH₃.
 17. A dyestuff mixture according to claim 15, wherein in the dyestuff of the formula (2) X is halogen, sulpho, C₁ -C₄ -alkyl or a thioether, ether or an unsubstituted or substituted amino group.
 18. A dyestuff mixture according to claim 15, wherein the dyestuff of the formula (2) is at least one dyestuff of the formula ##STR64##
 19. A dyestuff mixture comprising at least one blue-dyeing first dyestuff of the formula ##STR65## wherein R is hydrogen or unsubstituted or substituted alkyl,T₁ and T₂ each independently is hydrogen, chlorine, bromine, unsubstituted or substituted C₁ -C₄ -alkyl, C₁ -C₄ -alkoxy, phenyl or phenoxy, and X is hydrogen, halogen, a sulphonic acid group, lower alkyl, a thioether group, an ether group, or an unsubstituted or substituted amino group,together with at least one a navy blue- or black-dyeing dyestuff which is at least one dyestuff selected from the group consisting of dyestuffs of the formulas (49) to (56) ##STR66##
 20. A dyestuff mixture according to claim 19, wherein in the dyestuff of the formula (2), T₁ and T₂ each independently is Cl or OCH₃.
 21. A dyestuff mixture according to claim 19, wherein in the dyestuff of the formula (2) X is halogen, sulpho, C₁ -C₄ -alkyl or a thioether, ether or an unsubstituted or substituted amino group.
 22. A dyestuff mixture according to claim 19, wherein the dyestuff of the formula (2) is at least one dyestuff of the formula ##STR67## 